BITS PILANI, DUBAI CAMPUS
INSTRUCTION DIVISION
First Semester 2014 – 2015
Course Handout (Part – II)
Date: 02.09.2014
In addition to Part I (General Handout for all courses appended to the Time Table) this portion further specific details regarding the course.
Course No. : ME F461 (3 0 3)
Course Title : Refrigeration & Air-conditioning
Instructor-in-charge : Dr.A.M.Surendra kumar
Instructors : Dr.A.M.Surendra kumar
Scope and Objective of the Course:
The course is designed to give an in-depth study of theory of refrigeration and air-conditioning and their applications. The techniques of analysis and design of refrigeration and air-conditioning systems will also be discussed.
Course Pre/Co- requisite (if any) & Catalogue / Bulletin Description: Given in the Bulletin 2014 – 2015
Study Material:
Text book [TB]:
Arora C.P. ‘Refrigeration and Air-conditioning’, 3rd Ed. Tata McGraw Hill Co, 2009
Reference book(s) [RB]:
i. Arora.S.C, & Domkundwar S, “A course in Refrigeration and Air conditioning” 7th Ed. Dhanpat Rai & Co. Ltd, 2005
ii. Manohar Prasad, ‘Refrigeration and air-conditioning’, Wiley Eastern Ltd, 1983.
iii. Roy J. Dossat, ‘Principles of Refrigeration’, 4nd Ed., Pearson Education Asia, 2002.
iv. Edward G. Pita, ‘Air Conditioning Principles and Systems’, 4nd Ed., Pearson Education Asia, 2003.
Course Plan / Schedule:
Lect No. / Learning Objectives / Topics to be covered / Reference to Text / No. of Lectures1 / Introduction & Review / Introduction, the second law interpretation, the Carnot principle / 2 / 1
2 / Gas cycle refrigeration / Air craft refrigeration / 11 / 3
3 / Vapor compression system / Modification in reversed Carnot cycle, Vapour compression cycle, Effect of operating conditions, Actual cycle / 3 / 5
6 / Multi-pressure systems / Multi stage compression / 5 / 3
7 / Compressors / Principle and performance of reciprocating compressor, rotary and C.F compressors / 6 / 1
8 / Condensers / Types, Heat transfer in condensers / 7 / 1
9 / Evaporators / Types, Heat transfer in evaporators, augmentation of boiling heat transfer / 8 / 1
10 / Expansion Valves / Types of expansion devices, constant pressure and thermostatic expansion valve / 9 / 1
11 / Refrigerants / Designation of refrigerants, comparative study, selection of refrigerant / 4 / 4
12 / Vapor absorption system / Vapor absorption system / 12 / 3
14 / Vapor absorption system / Double effect H2O-LiBr2 absorption system, Electrolux refrigerator / 12 / 2
15 / Psychrometry of A/C processes / Properties, chart, application of first law, Basic processes in conditioning of air / 14 / 5
17 / Load Calculations – Cooling & Heating / Design conditions, solar radiations, heat transfer through building structure / 16,17,18 / 2
18 / Load Calculations – Cooling & Heating / Heat gains, cooling and heating load estimate, Psychrometric calculations and selection of air-conditioning apparatus cooling and dehumidification / 19 / 2
19 / Design of A/C systems / Heat and moisture transfer in air-conditioning equipments / 20 / 4
21 / Transmission and distribution of air / Friction loss and dynamic losses in ducts, Air flow through simple duct system, air duct design / 21 / 5
22 / Application of Refrigeration & Air Conditioning Systems / Food processing by refrigeration and storage, transportation refrigeration, Cooling and heating of foods, freeze drying and heat drying of foods / 24 / 2
Total Number of classes planed / 45
Evaluation scheme:
EC No / Evaluation Components / Duration / Weightage % / Date & Time / Venue1 / Test-1(Closed Book) / 50 minutes / 25 / 01.10.14 W2 / To be announced later
2 / Quiz-1(Closed Book) / 20 minutes / 08 / 15.10.14 W6
3 / Test - 2(Open book*) / 50 minutes / 20 / 17.11.14 M2
4 / Quiz – 2 / Assignment(Closed Book) / 20 minutes / 07 / 03.11.14 M8
5 / Compre Exam(Closed Book) / 3 hours / 40 / 28.12.14 Su(AN)
* Only prescribed text book(s) and hand written notes are permitted
Mid-Sem Grading:
Mid-sem grading will be displayed after two evaluation components. (Refer Academic calendar for schedule).
Note: A student will be likely to get “NC”, if he / she doesn’t appear / appear for the sake of appearing for the evaluation components / scoring zero in pre-compre total.
Makeup and Attendance policies:
Make-ups are not given as a routine. It is solely dependent upon the genuineness of the circumstances under which a student fails to appear in a scheduled evaluation component. In such circumstances, prior permission should be obtained from the Instructor-in-Charge (I/C).The decision of the I/C in the above matter will be final.
Attendance: Every student is expected to be responsible for regularity of his/her attendance in class rooms and laboratories, to appear in scheduled tests and examinations and fulfill all other tasks assigned to him/her in every course. A student should have a minimum of 50% of attendance in a course to be eligible to appear for the Comprehensive Examination in that course. For the students under the purview of Academic Counseling Board (ACB), the Board shall prescribe the minimum attendance requirement on a case-to-case basis. Attendance in the course will be a deciding factor in judging the seriousness of a student which may be directly / indirectly related to grading.
General timings for consultation:
Each instructor will specify his / her chamber consultation hours during which the student can contact him / her in his / her chamber for consultation.
General instructions:
Students should come prepared for classes and carry the text book(s) or material(s) as prescribed by the Course Faculty to the class.
Notices:
All notices will be displayed on the III rd year Notice Board.
Instructor- In-Charge
ME F461
Instructors’ Contact Details: Dr. A.M. Surendra Kumar, Associate Professor, Chamber No.163, Main Block, Ph: 00971 4 4200700, Extn: 251, email: Mobile No. 971 50 4746385